JP4646136B2 - Self-luminous road sign post and manufacturing method thereof - Google Patents

Description

  The present invention relates to a night self-luminous flexible road sign post (line-of-sight sign post) installed on the road surface of a road or a parking lot, and a method for manufacturing the same.

  On road surfaces of roads and parking lots, road sign pillars (line-of-sight sign pillars) are installed to indicate the presence of center lines, shoulders, courses, curves, etc., especially at night. As such a road sign pillar, a hollow central pillar for human recognition and a base for fixing this to the road surface are fixed, and a light source is provided inside the hollow to turn on the light source at night The technique which made it easy to visually recognize by making it illuminate the center pillar internally is known (for example, refer patent documents 1-3).

  The road sign pillar described in Patent Document 1 is excellent in self-restoration against deformation caused by stepping on a vehicle, and is intended to protect a light source mounted to improve visibility from an impact or load. The column is formed of a hollow rubber-like elastic body and an irradiation light lamp as a light source is embedded in the base portion. Here, the base part is comprised from the base and the holding | suppressing ring fitted to this base. As the base part constituent material, a thermoplastic polyurethane elastomer and a cast type (reaction curable) polyurethane are exemplified as suitable ones.

  In Patent Document 2, a road sign pillar body is provided with a through hole that crosses the body, and a light emitter mounting member is fitted into the through hole. A configuration is disclosed in which a light emitter can be securely attached to a pillar body, and high-luminance light is directly emitted from the light emitter disposed in the through hole. As a result, high visibility is achieved.

  Patent Document 3 incorporates a solar battery, a storage battery that stores the power of the solar battery, a light emitter that emits light by the electric power stored in the storage battery, and a self-illuminating device that includes a circuit that controls light emission. In addition, a road sign post configured to be guided to a peripheral surface of a pole by an optical fiber is disclosed. The solar cell, the storage battery, and the control circuit are incorporated in the base, and the solar cell is connected to the other end of the optical fiber with one end of the light receiving surface positioned on the pole surface.

Japanese Patent Laid-Open No. 8-239812 JP 2000-297412 A Japanese Patent Laid-Open No. 10-30215

  All of the above-mentioned known road sign pillars are formed so as to be easily visible at night by turning on the light source and internally illuminating the central pillar.

  However, the road sign pillar described in Patent Document 1 is centered by a hollow rubber-like elastic body in order to recover the deformation given by the stepping on the traveling vehicle and make the shape self-recoverable and at the same time prevent damage due to collision. Although pillars are formed and the base is made of solid rubber or resin, based on this structure, electrical members such as optical sensors, capacitors, and circuit boards for controlling these are simply formed on the base. The road sign pillars housed in the recesses were manufactured and installed on a trial basis, and a passenger car, which is regarded as a standard for installation, was tested to confirm that it had sufficient durability. When installed and used, there was a problem that the lighting could not be turned on. In addition, when the cooling / heating cycle test was performed, there was a problem in that the lighting could not be turned on.

  The road sign pillar described in Patent Document 2 does not have a function to recover the deformation given by the stepping on the traveling vehicle and to make the shape self-recoverable, and replacement of parts such as a light emitting diode (LED) at the time of breakage is not possible. Although it is easy, it does not have a function of preventing the damage itself due to the collision, and it is difficult to structurally increase the strength and reduce the damage.

  Patent Document 3 has a function of recovering deformation caused by trampling of a traveling vehicle so that the shape can be self-restored. A solar cell, a storage battery, a light emitting diode, and a control circuit are incorporated in a substrate, such as silicon resin. And enclosed in a chamber formed inside the base. Therefore, the production efficiency is poor, the production takes time and the cost is high.

  In addition, the conventional method of joining and fixing the central column and base has been a casting method in which resin is injected, but work from various directions such as the top and bottom surfaces is required. There was a strong demand for improvement due to poor productivity such as poor workability and curing time. In addition, the road sign pillar produced by the casting method has a problem in that it cannot be separated and must be landfilled when it is disposed of after use.

  The object of the present invention is to have a function of recovering deformation caused by stepping on a traveling vehicle when installed on a road surface so that the shape can be self-restored, and there is no damage to a light emitter, a solar cell, a power storage member, etc. Another object of the present invention is to provide a self-luminous road sign post with high production efficiency and a method for manufacturing the same. Another object of the present invention is to provide a self-luminous road sign post and a method of manufacturing the same that can be separately disassembled and separated when disposed after use.

As a result of intensive studies, the present inventors have found that the above object can be achieved by the following self-luminous road sign post and the manufacturing method thereof, and have completed the present invention.
The present invention relates to a method for manufacturing a self-luminous road sign post, a base part manufacturing process for manufacturing a base part with a thermoplastic resin, a central column manufacturing process for manufacturing a central pillar with a thermoplastic elastomer, and a thermoplastic resin. A reinforcing part manufacturing process for producing a hollow reinforcing part by the above-mentioned method, and an assembling process for standing the central pillar and the reinforcing part on the base part, and the reinforcing part is made of the same thermoplastic resin as the base part or the central pillar And (2) a plurality of light emitters and at least one solar cell on the outer periphery of the reinforcing portion in the assembling process. And (3) inserting a central column into the hollow portion of the reinforcing portion, and lowering the central column on the inner surface of the upper portion of the reinforcing portion so as to obtain a sealing property between the central column and the reinforcing portion. Mated with the outer periphery, By fitting the lower outer periphery of the base portion in the lower inner surface of the strong portion, and having a step, for clamping fixing the center pillar with a base unit.
Such a road sign pillar manufacturing method is not formed by casting a base part of a reactive curable resin as in the past, but is formed by a thermoplastic resin, and only the assembled members are assembled. Therefore, it can be manufactured efficiently and at low cost in a short time. In addition, it is possible to provide a method for manufacturing an excellent external illumination type self-luminous road sign post having a self-restoring function, having less damage to members and having high visibility. Also, it fits with the lower outer periphery of the center column on the upper inner surface of the reinforcement part, and fits with the lower outer periphery of the base part on the lower inner surface of the reinforcement part, and firmly clamps and fixes the central column together with the base part Can do. In addition, a sealing property that prevents rainwater and dust from entering between the central column and the reinforcing portion is obtained. At this time, it is preferable that the reinforcing portion is made of the same thermoplastic resin as that of the base portion, or the same thermoplastic elastomer as that of the central column is used in combination.

The present invention also relates to a self-luminous road sign post produced by the above-described method for producing a self-luminous road sign pillar, wherein the base part is made of a thermoplastic resin in which a power storage member is accommodated. A center column made of an upright thermoplastic elastomer, and a hollow reinforcing part made of a thermoplastic resin in which a plurality of light emitters and at least one solar cell are arranged on the outer periphery;
The reinforcing part is made of the same thermoplastic resin as the base part, or the same thermoplastic elastomer as the central pillar is used together, and the central pillar is formed on the upper inner surface of the reinforcing part so as to obtain a sealing property between the central pillar and the reinforcing part. The base column is sandwiched and fixed together with the base part by fitting with the lower outer periphery of the base part and the lower inner surface of the reinforcing part with the lower outer periphery of the base part.

These road sign pillars recover the deformation caused by trampling of the traveling vehicle by the characteristics such as the flexibility of the material of the center pillar and the strength and elasticity of the base part and the reinforcing part. In addition to having a function that enables restoration and breakage resistance, it is possible to ensure excellent visibility by the light emitter disposed on the upper outer periphery of the reinforcing portion. In addition, by using a built-in type road sign pillar composed of a central pillar, a base part, and a reinforcing part, when disposing after use, each constituent part can be separately decomposed and separated. Furthermore, the road sign pillar which has a light emission function independently can be formed by arrange | positioning a light-emitting body, an electrical storage member, and a solar cell. Therefore, it is possible to provide an excellent external lighting type self-luminous road sign post having a self-restoring function, high visibility and high production efficiency. Also, it fits with the lower outer periphery of the center column on the upper inner surface of the reinforcement part, and fits with the lower outer periphery of the base part on the lower inner surface of the reinforcement part, and firmly clamps and fixes the central column together with the base part Can do. In addition, a sealing property that prevents rainwater and dust from entering between the central column and the reinforcing portion is obtained. At this time, it is preferable that the reinforcing portion is made of the same thermoplastic resin as that of the base portion, or the same thermoplastic elastomer as that of the central column is used in combination.

  At this time, it is preferable that the light emitter is attached in an embedded state in which the surface of the lighting portion does not exceed the outer peripheral surface of the reinforcing portion, and the sealing resin for the light emitter is an epoxy resin.

  In the past, there have been many proposals that emphasize the replacement of parts and the efficiency of maintenance work on the premise of damage to light emitters (for example, LEDs) as described above for exterior-lit road sign pillars. It was. The present invention aims to strengthen the structure by embedding the light emitter in a reinforcing portion having strength and elasticity, and to prevent damage to the light emitter itself by using a strong impact epoxy resin as a sealing member. This makes it possible to provide an externally lit self-luminous road sign post that is highly resistant to impact and can be used for a long period of time.

The present invention is a self-luminous road sign pillar, comprising a base portion made of a thermoplastic resin in which an electric storage member and a plurality of light emitters are accommodated on an upper inner surface, and a thermoplastic elastomer erected on the base portion And a hollow reinforcing portion made of a thermoplastic resin in which at least one solar cell is disposed on the outer periphery , and the reinforcing portion is made of the same thermoplastic resin as the base portion or has the same heat as the central column. In addition to using plastic elastomer together, it fits with the lower outer periphery of the central column on the upper inner surface of the reinforcing portion so as to obtain a seal between the central column and the reinforcing portion, and the base portion of the lower inner surface of the reinforcing portion. The center column is clamped and fixed together with the base portion by fitting with the lower outer periphery.

As described above, such road sign pillars recover deformation caused by trampling of the traveling vehicle by characteristics such as flexibility of the material of the central pillar and characteristics such as strength and elasticity of the base part and the reinforcing part. In addition to having a function that allows the shape to be self-recoverable and resistance to breakage, excellent visibility can be ensured by the power storage member and the light emitter disposed inside the central column. In addition, by using a built-in type road sign pillar composed of a central pillar, a base part, and a reinforcing part, when disposing after use, each constituent part can be separately decomposed and separated. Therefore, it is possible to provide an excellent internally illuminated self-luminous road sign post having a self-restoring function, high visibility, and high production efficiency. Also, it fits with the lower outer periphery of the center column on the upper inner surface of the reinforcement part, and fits with the lower outer periphery of the base part on the lower inner surface of the reinforcement part, and firmly clamps and fixes the central column together with the base part Can do. In addition, a sealing property that prevents rainwater and dust from entering between the central column and the reinforcing portion is obtained. At this time, it is preferable that the reinforcing portion is made of the same thermoplastic resin as that of the base portion, or the same thermoplastic elastomer as that of the central column is used in combination.

  In the self-luminous road sign pillar, it is preferable that the central pillar has a protrusion in the circumferential direction of the lower outer peripheral surface, and the reinforcing part is mounted and fixed to the base part by the protrusion. .

  With such a configuration, when a heavy vehicle such as a truck passes over and passes through a road sign post, undergoes deformation that causes the central post to be crushed near the base, and is subject to pulling stress associated with the deformation However, it is possible to prevent the central pillar from falling off and to maintain an integrated function including the central pillar, the base portion, and the reinforcing portion.

The present invention also relates to a method for manufacturing a self-luminous road sign post, a base part manufacturing process for manufacturing a base part with a thermoplastic resin, a central column manufacturing process for manufacturing a central pillar with a thermoplastic elastomer, A reinforcing part manufacturing process for producing a hollow reinforcing part with a plastic resin, and an assembly process for standing the central column and the reinforcing part on the base part, and the reinforcing part is made of the same thermoplastic resin as the base part or While using the same thermoplastic elastomer as the central pillar,
In the assembling step, (1) a step of accommodating and fixing the power storage member on the base portion, (2) a step of arranging and fixing a plurality of light emitters and at least one solar cell on the outer periphery of the reinforcing portion, and ( 3) Insert the central column into the hollow part of the reinforcing part, and fit it with the lower outer periphery of the central column on the upper inner surface of the reinforcing part so as to obtain a seal between the central column and the reinforcing part. A step of fitting the center pillar together with the base portion by fitting with the lower outer periphery of the base portion on the inner surface.

Such a road sign pillar manufacturing method is not formed by casting a base part of a reactive curable resin as in the past, but is formed by a thermoplastic resin, and only the assembled members are assembled. Therefore, it can be manufactured efficiently and at low cost in a short time. In addition, it is possible to provide a method for manufacturing an excellent external illumination type self-luminous road sign post having a self-restoring function, having less damage to members and having high visibility. Also, it fits with the lower outer periphery of the center column on the upper inner surface of the reinforcement part, and fits with the lower outer periphery of the base part on the lower inner surface of the reinforcement part, and firmly clamps and fixes the central column together with the base part Can do. In addition, a sealing property that prevents rainwater and dust from entering between the central column and the reinforcing portion is obtained. At this time, it is preferable that the reinforcing portion is made of the same thermoplastic resin as that of the base portion, or the same thermoplastic elastomer as that of the central column is used in combination.

The present invention also relates to a method for manufacturing a self-luminous road sign post, a base part manufacturing process for manufacturing a base part with a thermoplastic resin, a central column manufacturing process for manufacturing a central pillar with a thermoplastic elastomer, A reinforcing part manufacturing process for producing a hollow reinforcing part with a plastic resin, and an assembly process for standing the central column and the reinforcing part on the base part, and the reinforcing part is made of the same thermoplastic resin as the base part or While using the same thermoplastic elastomer as the central pillar,
In the assembling step, (1) a step of accommodating and fixing the power storage member and the plurality of light emitters in the base portion, (2) a step of disposing and fixing at least one solar cell on the outer periphery of the reinforcing portion, and ( 3) Insert the central column into the hollow part of the reinforcing part, and fit it with the lower outer periphery of the central column on the upper inner surface of the reinforcing part so as to obtain a seal between the central column and the reinforcing part. A step of fitting the center pillar together with the base portion by fitting with the lower outer periphery of the base portion on the inner surface.

Such a method of manufacturing a road sign post is molded with a thermoplastic resin, as described above, and can be manufactured simply by assembling the molded member, so that it can be manufactured efficiently and at low cost in a short time. It becomes possible. In addition, it is possible to manufacture an excellent internally illuminated self-luminous road sign post having a self-restoring function, having little damage to members and high visibility. Also, it fits with the lower outer periphery of the center column on the upper inner surface of the reinforcement part, and fits with the lower outer periphery of the base part on the lower inner surface of the reinforcement part, and firmly clamps and fixes the central column together with the base part Can do. In addition, a sealing property that prevents rainwater and dust from entering between the central column and the reinforcing portion is obtained. At this time, it is preferable that the reinforcing portion is made of the same thermoplastic resin as that of the base portion, or the same thermoplastic elastomer as that of the central column is used in combination.

  Embodiments of the present invention will be described with reference to the drawings. In the road sign pillar according to the present invention, a base part made of a thermoplastic resin in which a power storage member is accommodated, a central pillar made of a thermoplastic elastomer standing on the base part, and at least one solar cell are arranged. It is composed of a hollow reinforcing part made of thermoplastic resin, and is fitted to the lower outer periphery of the central column on the upper inner surface of the reinforcing part and to the lower outer periphery of the base part on the lower inner surface of the reinforcing part. The center column is clamped and fixed together with the base (basic configuration).

<Configuration example of externally lit road sign pillar according to the present invention>
FIG. 1 shows a configuration example (first configuration example) of an externally illuminated road sign post in which a plurality of light emitters are arranged in a reinforcing portion in addition to the above configuration as a preferred form of the road sign post of the present invention. It is the fragmentary sectional view shown. The road sign pillar 10 includes a hollow central pillar 12 with a closed head, a reinforcing part 13 and a base part 14, and a lower end part 12 a of the central pillar 12 is sandwiched between the reinforcing part 13 and the base part 14. It is fixed by. In other words, the upper inner surface A of the reinforcing portion 13 is fitted to the lower outer periphery of the central column 12, and the lower inner surface B of the reinforcing portion 13 is fitted to the lower outer periphery of the base portion 14. 12 can be firmly clamped and fixed. As described above, it is preferable that the seal between the central column 12 and the reinforcing portion 13 is obtained so that rainwater and dust can hardly enter.

  It is preferable that the lower end portion 12 a of the central column 12 has a ridge in the circumferential direction of the lower outer peripheral surface of the central column 12 in order to prevent falling off. In the cross-sectional view of FIG. 1, it is formed in a bowl shape that is further bent outward and the lower end 12a is inverted. A plurality of reflection sheets 11 (three in FIG. 1) are wound around the outer surface extending from the upper part of the central pillar 12 to the central part, thereby improving the visibility of the road sign pillar 10 at night. The cross-sectional shape of the central column 12 is not particularly limited, but is preferably cylindrical from the viewpoint of visibility from all directions and manufacturing simplicity. The center column 12 has an outer diameter of 5 to 15 cm, a wall thickness of 2 to 10 mm, more preferably 3 to 8 mm, and a length of 40 cm to 1.5 m.

  The reinforcing part 13 has a tapered cylindrical shape whose upper inner surface has the outer diameter of the center column 12 and whose lower inner surface has the outer diameter of the base part 14. The central column 12, the reinforcing part 13, and the reinforcing part 13 base It is preferable to configure so as to obtain a sealing property that prevents rainwater and dust from entering between the base portion 14. The reinforcing portion 13 has a thickness of 2 to 15 mm, more preferably 3 to 13 mm, and a length of 2 to 6 cm.

  FIG. 2 is a cross-sectional view showing the XX cross section of FIG. An example is shown in which eight light emitters (LEDs) 15 are disposed on the outer periphery of the central column 12 of the reinforcing portion 13 and two solar cells 16 are disposed on the outer upper surface thereof. It is preferable that the LED 15 as the light source is disposed so as to be able to illuminate around the lower part of the central pillar 12, and for example, 6 or more, and 8 or more are disposed as a quantity that can be recognized from various surrounding angles. Is preferred. It acts together with the retroreflective sheet 11 provided from the upper part to the central part of the central pillar 12 so that the entire central pillar 12 can be visually recognized regardless of the light irradiation direction of the vehicle. It is the structure which aims at improvement. Moreover, as shown in FIG. 1A, the LED 15 is preferably mounted in an embedded state in which the surface 15 a of the lighting portion of the LED 15 does not exceed the outer peripheral surface C of the reinforcing portion 13. It is possible to avoid receiving a direct impact of the vehicle or the like by the outer peripheral surface C. At the same time, it is preferable to seal the LED 15 using a reactive curable resin. In particular, as will be described later, it is possible to prevent damage to the LED itself by using a strong impact epoxy resin as a sealing member.

  Moreover, it is preferable that the solar cell 16 is concentrated on a part of the reinforcing portion 13 as illustrated. By installing the road sign post 10 so that the portion where the solar cells 16 are concentrated on the reinforcing portion 13 is in the south direction, the most efficient storage can be achieved.

  In addition to these, a light sensor (not shown) that detects lighting at night can also be installed in the reinforcing portion 13. In addition, a plurality of disk-like reflecting members (reflectors) can be attached to the side surface of the reinforcing portion 13 in the periphery, and the visibility of the road sign pillar 10 at night can be improved. The optical sensor needs to be aware of external light, and is preferably installed on the upper surface of the reinforcing portion 13 outside the central pillar 12, but is disposed below the base portion 14 (on the grounding surface side). In some cases, it is preferable to fill and seal with a reactive curable resin for sealing.

  A concave portion 17 is formed on the upper surface side of the base portion 14, and a power storage member 18 such as a capacitor 18 a for storing electricity obtained from the solar cell 16 and a circuit board 18 b for control is formed in the concave portion 17. Is preferably filled and sealed with a reactive curable resin for sealing after predetermined connection. The power storage member 18, the LED 15, and the solar cell 16 are connected by a lead wire 19. By using the connector 20 in the middle, maintenance in the installed state is also possible.

  Here, as a thermoplastic elastomer (TPE) which comprises the center pillar 12, a well-known thermoplastic elastomer can be used without particular limitation. Specifically, polyester TPE, polyurethane TPE (TPU), polyolefin TPE (TPO), polystyrene TPE (TPS), polyamide TPE (TPAE), ionomer TPE, diene TPE, polyvinyl chloride TPE ( TPVC), polyvinyl chloride / polyurethane polymer alloy TPE, a mixture of thermoplastic resin and rubber, and the like. A thermoplastic elastomer in which rubber is mixed or finely dispersed in these thermoplastic elastomers can also be used. These TPEs can be used alone, and two or more of them may be mixed and used as necessary. The thermoplastic elastomer preferably has a hardness of 90 or less in terms of JIS-A hardness, and more preferably 85 or less. If the hardness is too high, damage may occur due to repeated bending. The hardness of the thermoplastic elastomer is usually 50 or more in terms of JIS-A hardness. Among the thermoplastic elastomers described above, the use of polyurethane-based TPE is particularly preferable because of its excellent durability.

  A known thermoplastic resin can be used as the thermoplastic resin constituting the reinforcing portion 13 and the base portion 14 without limitation. Specifically, PET, PBT, polypropylene terephthalate, polyalkylene terephthalate resin such as polyester of 1,4-cyclohexanedimethanol and terephthalic acid, polyethylene naphthalate, polypropylene naphthalate, 1,4-cyclohexanedimethanol and naphthalenedicarboxylic acid Examples include polyalkylene naphthalate resins such as polyesters, polycarbonate resins, polyphenylene oxide, polyphenylene sulfide, polyurethane resins, fluorine resins such as PFA, ABS resins, and blend resins, polymer alloys, etc. selected from these resins. Is done. The thermoplastic resin constituting the reinforcing portion 13 and the base portion 14 may be the same or different materials. The reinforcing portion 13 can be used in combination with the thermoplastic elastomer.

  Moreover, as a suitable epoxy resin as the sealing reaction curable resin, a known so-called elastic epoxy resin can be used, for example, 4,4′-isopropylidenediphenol and 1-chloro-2,3-epoxy. A two-component type epoxy resin using a propane polymer as an epoxy compound component and a modified aliphatic polyamine as a curing agent is exemplified. Commercially available products are also suitable, and examples include Soflan Bond PM9004N. In particular, with respect to the LED incorporation part, the epoxy resin D hardness is 70 and it is hard to withstand impact, thereby preventing damage to the light emitter itself and enabling long-term use. The epoxy resin can be used alone, but it is also possible to add a reagent having a predetermined function as required. For example, it is preferable to add a colorant, a filler, and the like to the reaction curable resin as necessary from the viewpoints of improving the commercial value of the appearance and improving mechanical properties such as strength and compression modulus. It is an aspect. In particular, it is preferable to add an inorganic filler to the above-mentioned epoxy resin, particularly an epoxy resin used as a curable resin for sealing, and the above range while maintaining necessary flexibility by adding the inorganic filler. It is possible to form a curable resin for sealing having a compression elastic modulus of 5%. As the inorganic filler, it is preferable to use a material having a reinforcing property without impairing the fluidity of the curable composition, and specific examples thereof include silica and silica sand.

<The manufacturing method of the road sign pillar which concerns on a 1st structural example>
The road sign pillar 10 of the present invention includes a base part manufacturing process for manufacturing the base part 14 with a thermoplastic resin, a central column manufacturing process for manufacturing the central pillar 12 with a thermoplastic elastomer, and a hollow reinforcing part 13 with a thermoplastic resin. It is manufactured by a manufacturing method including a reinforcing part manufacturing process for manufacturing the center pillar 12 and the reinforcing part 13 on the base part 14 and an assembling process. Details of each step are as follows.

(1) Manufacturing process of center pillar Although the center pillar 12 is shape | molded by a well-known method, it is preferable to manufacture by cutting to predetermined length, after extruding in a continuous tube shape by extrusion molding of a thermoplastic elastomer.

(2) Manufacturing process of base part It is preferable to manufacture the base part 14 by injection molding of a thermoplastic resin. At this time, the concave portion 17 that accommodates the power storage member 18, the bolt hole 33 (described later) for the fixing bolt 32, or the wiring groove can be formed by disposing the member in a predetermined shape on the mold. After forming the base part 14, you may form by cutting using a cutting machine.

(3) Manufacturing process of reinforcement part It is preferable to manufacture the reinforcement part 13 by injection molding of a thermoplastic resin. At this time, the portion for accommodating the LED 15 and the solar cell 16 or the wiring groove can be formed by disposing a member in a predetermined shape on the mold, but a cutting machine is used after the reinforcing portion 13 is molded. It may be formed by cutting. Also. Before carrying out the assembling process, it is preferable to prepare a reinforcing portion 13 in which a plurality of LEDs 15 and at least one solar cell 16 are previously arranged on the outer peripheral surface C and fixed by a reactive curable resin (epoxy resin) for sealing. .

(4) Assembling process By assembling the members obtained by this manufacturing method by the following assembling process, it is simpler than casting a reaction curable composition like a conventional road sign post and forming a base. The road sign pillar 10 can be manufactured at low cost. A description will be given with reference to FIGS.
(4-1) When fixing to a road, the base part 14 is fixed to a road.
FIG. 3 is a cross-sectional view illustrating a state where the road sign pillar 10 according to the first configuration example is installed on the road. The road sign pillar 10 is fixed by screwing a fixing bolt 32 to an anchor 31 installed on the road surface. That is, the fixing bolt 32 is fixed to the anchor 31 through the bolt hole 33 provided in the lower portion of the recess 17 in the base portion 14. The anchor used in FIG. 3 can be the same as the anchor for fixing other types of road sign pillars, and the installation work is unified and simplified.
(4-2) The power storage member 18 is accommodated in the concave portion 17 of the base portion 14.
At this time, the fixing which can be disassembled can be performed by fitting with the concave portion 17. It is preferable to fix with a reactive curable resin for sealing (epoxy resin) in a place where vibration is intense.
(4-3) The central pillar 12 is inserted into the base part 14.
At this time, the lead wire 19 and the connector 20 are pulled out of the central pillar 12.
(4-4) Insert the reinforcing portion 13 into the central pillar 12.
At this time, the connector 15 for the LED 15 and the solar cell 16 is connected.
(4-5) As shown in FIG. 1 or FIG. 3, the upper outer surface A of the reinforcing portion 13 is fitted to the lower outer periphery of the center column 12, and the lower outer periphery of the base portion 14 is lower on the lower inner surface B of the reinforcing portion 13. The center column 12 is clamped and fixed together with the base portion 14 by fitting.
By the above, the self-light-emitting road sign pillar 10 can be manufactured reliably.

  Next, after the road sign pillar 10 of the present invention is fixed to the road surface, a deformed state when the vehicle can get over is shown. FIG. 4 is a cross-sectional view at that time. At this time, although the reinforcing portion 14 and the central column 12 are subjected to tensile stress at the T portion, the central column 12 is effectively prevented from falling off by the action of the lower end portion 12a and the reinforcing portion 14. Moreover, damage of LED15, the solar cell 16, the electrical storage member 18, etc. can be prevented with the intensity | strength of the reinforcement part 14, and the reactive curable resin for sealing.

<Configuration example of internally illuminated road sign pillar according to the present invention>
Next, as a preferred form of the different road sign post 10 of the present invention, in addition to the basic structure, a configuration example of the internally illuminated road sign post 10 in which a plurality of LEDs 15 are arranged on the upper inner surface of the base part 14 (first) 2 configuration examples) are shown. FIG. 5A is a partial cross-sectional view showing a state of being fixed to a road. As in the first configuration example, the road sign pillar 10 includes a central pillar 12, a reinforcing part 13, and a base part 14, and a lower end 12 a of the central pillar 12 is sandwiched between the reinforcing part 13 and the base part 14. It is fixed by.

  FIG. 5B is a cross-sectional view illustrating the XX cross section of FIG. An example is shown in which six light emitters (LEDs) 15 are arranged on a circuit board 18b of a power storage member 18 accommodated in a recess 17 of a base part 14. The central pillar 12 is irradiated from the inner surface to improve the visibility of the road sign pillar 10 at night. The LED can be prevented from being damaged by being disposed in the concave portion 17 of the base portion 14.

<The manufacturing method of the road sign pillar which concerns on a 2nd structural example>
The road sign pillar 10 of the present invention is manufactured by assembling the members produced by the respective production steps (1) to (3) of the central pillar 12, the base part 14, and the reinforcing part 13 similar to the first configuration example. . However, since the plurality of LEDs 15 are disposed on the circuit board 18b constituting the power storage member 18 and accommodated in the base portion 14, this point differs from the first configuration example in the manufacturing process. That is, it is preferable to prepare the power storage member 18 in which the plurality of LEDs 15 are arranged on the circuit board 18b in advance before performing the assembly process.
The assembly process is the same as in the first configuration example. Since the LED 15 is housed inside the central pillar 12, the cord 19 and the connector 20 for the LED 15 in the first configuration example are not necessary.

<Another configuration example of internally illuminated road sign pillar according to the present invention>
Next, a configuration example (third configuration example) in which the fixing method for each part of the internally illuminated road sign post 10 is different will be described. FIG. 6 is shown as a partial sectional view in a state of being fixed to the road. As in the second configuration example, the road sign pillar 10 includes a center pillar 12, a reinforcing part 13, and a base part 14, and a lower end part 12 a of the center pillar 12 is sandwiched between the reinforcing part 13 and the base part 14. It is fixed by. At this time, the locking rib 21 is fitted into the end of the center column 12 so as to reinforce the center column 12 with respect to the base portion 14. The arrangement of the locking rib 21 can ensure the fitting of the end portion of the central column 12 and the base portion 14, and the road sign column 10 is excellent in resilience after being stepped on by the vehicle. can do.

  The shape of the locking rib 21 is not particularly limited, and a ring-shaped body having a taper with good workability as shown in FIG. 6 or a type in which one end is opened and tightened with a fixing nut is used. be able to.

<Method for manufacturing road sign pillar according to third configuration example>
The road sign pillar 10 of the present invention is made up of the members produced by the manufacturing steps (1) to (3) of the central pillar 12, the base part 14, and the reinforcing part 13 similar to those in the first configuration example. As a result of the assembly, it is possible to manufacture the internally illuminated road sign post 10 that is firmly fixed. The description is omitted in the same case as the first configuration example and the second configuration example.
(4-1) When fixing to a road, the base part 14 is fixed to a road.
(4-2) The power storage member 18 is accommodated in the concave portion 17 of the base portion 14.
(4-3) The central pillar 12 is inserted into the base part 14.
(4-4) Insert the locking rib 21 into the center column 12.
At this time, if the central column 12 is somewhat tapered and the locking rib 21 is also tapered, the locking rib 21 can be easily inserted and fixed in a state of being locked to the lower end portion 12 a of the central column 12. Is done. At this time, the central column 12 is firmly fixed to the base portion 14.
(4-5) Insert the reinforcing portion 13 into the central pillar 12.
(4-6) As shown in FIG. 6, the center column 12, the reinforcing portion 13, and the base portion 14 are sandwiched and fixed via the locking rib 21.
By the above, the self-light-emitting road sign pillar 10 can be manufactured reliably.

  In addition, when the road sign pillar 10 of the present invention is mounted on the road after being fixed to the road surface, the reinforcing portion 13 and the central pillar 12 are subjected to tensile stress. Is prevented.

<Example 1>
(1) Test contents The road sign pillars described in FIGS. 1 and 5 were tested using (2) visibility and (2) impact durability as confirmation items.

(2) Visibility confirmation (2-1) Test method Road sign pillars are installed in urban areas, agricultural roads, and general roads, and a night driving test (20, 40, 60 km / h) is conducted by multiple members on the vehicle. Then, a visual test of the lighting state and the reflection function on the reflection member was performed.
(2-2) Test results The lighting and reflection of the internally illuminated and externally illuminated road sign pillars could be confirmed under any driving conditions.

(3) Confirmation of impact durability (3-1) Test method Actual vehicle impact test (truck 20t 80km / h) for internally illuminated road sign pillars, actual vehicle impact test (normal car 2t) for externally illuminated road sign pillars 20 km / h), and then it was confirmed whether or not the road sign pillar could be turned on.
(3-2) Test results Both internally illuminated and externally illuminated road sign pillars were lit even after a collision.

(4) Confirmation of bending endurance test (4-1) Test method For internally illuminated and externally illuminated road sign pillars, as shown in FIG. It was confirmed whether the sign post was standing and lit.
(4-2) Test results Both internally illuminated and externally illuminated road sign pillars stood up and turned on without any difference from before the test.

(5) Outdoor exposure test (5-1) Test method For internally-illuminated and externally-illuminated road sign pillars, they are allowed to stand outdoors for 60 days under the same conditions as general roads, and then inside the road sign pillars. It was confirmed whether or not it was possible to check for raindrops or dust contamination and lighting.
(5-2) Test results Both internally illuminated and externally illuminated road sign pillars were lit without any difference from before the test. Moreover, as a result of disassembling the interior after the test, no raindrops, dust contamination, generation of metal oxides, or damage to the printed circuit board were observed inside the road sign pillar.

(6) Summary As mentioned above, when installed on the road surface, there is no damage caused by impact or stepping on the traveling vehicle or outdoor exposure, and the visibility and self-restoration required as a self-luminous road sign post It was confirmed that this is a road sign post with internal or external lighting that has sufficient functions.

The fragmentary sectional view which showed the suitable form of the road sign pillar of this invention Sectional drawing which showed the XX cross section of FIG. FIG. 1 is a cross-sectional view illustrating a state in which the road sign pillar illustrated in FIG. 1 is installed on a road Sectional view showing the deformation of the road sign pillar when getting over the vehicle Partial sectional view of the road sign pillar according to the second configuration example fixed to the road Partial sectional view of the road sign pillar according to the third configuration example fixed to the road

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Road sign pillar 12 Center pillar 13 Reinforcement part 14 Base part 15 Light-emitting body (LED)
16 Solar cell 18 Power storage member 21 Locking rib

Claims (4)

A base part manufacturing process for manufacturing a base part with a thermoplastic resin, a central column manufacturing process for manufacturing a central pillar with a thermoplastic elastomer, a reinforcing part manufacturing process for manufacturing a hollow reinforcing part with a thermoplastic resin, and a central pillar It has an assembly process of standing the reinforcing part on the base part, and the reinforcing part is made of the same thermoplastic resin as the base part or uses the same thermoplastic elastomer as the central pillar,
In the assembling step, (1) a step of accommodating and fixing the power storage member on the base portion, (2) a step of arranging and fixing a plurality of light emitters and at least one solar cell on the outer periphery of the reinforcing portion, and ( 3) Insert the central column into the hollow part of the reinforcing part, and fit it with the lower outer periphery of the central column on the upper inner surface of the reinforcing part so as to obtain a seal between the central column and the reinforcing part. A method of manufacturing a self-luminous road sign post, comprising: a step of fitting the center pillar together with the base portion by fitting the lower inner periphery with a lower outer periphery of the base portion on the inner surface. A self-luminous road sign pillar produced by the method for producing a self-luminous road sign pillar according to claim 1,
A base portion made of a thermoplastic resin in which an electricity storage member is housed, a central column made of a thermoplastic elastomer standing on the base portion, a plurality of light emitters and at least one solar cell are disposed on the outer periphery. A hollow reinforcing portion made of a thermoplastic resin,
The reinforcing part is made of the same thermoplastic resin as the base part, or the same thermoplastic elastomer as the central pillar is used together, and the central pillar is formed on the upper inner surface of the reinforcing part so as to obtain a sealing property between the central pillar and the reinforcing part. A self-luminous road sign post which is fitted to the lower outer periphery of the base part and is fitted to the lower outer periphery of the base part on the inner surface of the lower part of the reinforcing part so as to sandwich and fix the central pillar together with the base part. 3. The self-light-emitting device according to claim 2 , wherein the light-emitting body is mounted in an embedded state in which the surface of the lighting section does not exceed the outer peripheral surface of the reinforcing section, and the sealing resin for the light-emitting body is an epoxy resin. Road sign pillar. The self-luminous type according to claim 2 or 3 , wherein a convex portion is provided in a circumferential direction of a lower outer peripheral surface of the central pillar, and the reinforcing portion is mounted and fixed to the base portion by a convex portion. Road sign pillar.

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